Combined heating and ventilating system for automobiles.



No. 873,399. PATENTED DEC. 10, 1907.

N. W. WILLIAMS. COMBINED HEATING AND VBNTILATING SYSTEM FOR AUTOMOBILES.

APPLICATION FILED NOV. 2, 1906.

2 SHEETSSHEET l.

55 5 aim No. 873,399. IPATENTED DEC. 10, 1907.

N. W. WILLIAMS.

COMBINED HEATING AND VENTILATING SYSTEM FOR AUTOMOBILES.

APPLIOATION IILED NOV. 2, 1906.

\ 2 SHEETS-SHEET 2.

UNITED; strArEs PATENT F C NATHAN'W. WILLIAMS, OF EVANSTON, ILLINOIS.

COMBINED HEATING AND VENTILATING SYSTEM FOR AUTOMOBILES.

To all whom it may concern.

Be it known that I, NATHAN W. WIL

. LIAMS, a citizen of the United States, residing at Evanston, in the county of Cook and State of Illinois, have invented certain new and and muffler 'and conveying a portion of the construction-and combination of heated waste gases to a heater located beneath the floor of the automobile for the purpose of heating the air supplied to the closed vehicle body.

The invention is further intended to relieve the muflier by reducing the volume of heated Waste gases delivered thereto, and

to furtherrelie've the engine by reducing the back pressure owing to the increased facility with which the waste gases are permitted to be discharged.

The invention isintended to be applied more es ecia-lly toautomobiles of any suitable ,sty e; but the mechanism to be hereinafter described canwith e ual readiness be applied to motor boats or aunches, so that it will be, understood that in the specification and drawings an automobile is shown merely for the purpose ofindicating a suitable and convenient method of applying the mechanism of the present inventlon, and that the same can be applied to vehicles or convey- 'ances of a substantially difierent type propelled by hydro-carbon power.

The invention consists in the features of parts hereinafter described and claimed.- 7

11 1 the drawings Figure 1, is a sectional elevation of-an automobile oft-he touring cartype, Fig-2a top" .or plan view of the radiator, box; 7 Fig. {3 s a,--sectional plan view ofthe same showmggthe cov'erficut away and the shape ofthe ,discharge-pi e; slightly modifi d Fig, A a 3 section l v.el evation of the radiator box-showing the check valve in the discharge pipe and; Fig. '5 a detail of -the fro1it,wall of the inclosing :box showing a gThe' f ention, as shownl sis automobile having a {closed compartmen't J 5" vprovidedwvith aseattqiin. front OfWlllGh com artment is an openfrontseat? :of the usua character. The engineS islocated in Specification of Letters Patent.

Application filed November 2, 1906. Serial No. 341.787.

suitable point.

Patented Dec. 10, 1907. v

the front art of the vehicle andis covered by a hoo 9 of ordinary character, and the engine has leading therefrom beneath the floor 10 of the car an exhaust pipe 11 which connects with a mufller 12' near the rear end of the car and beneath the floor, and the exhaust ipe passes through an inclosing box 13 whic 1s secured to the bottom of the floor beneath the closed portionof the car. The inclosing box has located therein a'ventilating box 14 which may be of any suitable shape and size to accommodate it to the proportions of the vehicle intended to be heated. In the present case the box is of oblong rectangular shape, as shown in Figs.

2 and 3, and is of greater width transversely v of the car than longitudinally thereof. The radiator box is preferably elevated a slight distance above the floor of the inclosing box to dpermit the air to circulate all around the ra i radiator box from a short branch pipe 16 of elbow shape which leads from the top of the forward side of the radiatorbox to the exhaust pipe forthe engine, and is adapted to the exhaust pipe and pass them through the radiator box and thereafter discharge them through a discharge pipe 17, having therein a flap check valve 17. may lead directly out of the bottom of inclosing box, as shown in Figs. 1 and 4, or the pipe may? be extended, as shown in Fig; 3, so as to discharge the waste gas at any the radiator box near the lower side of the front wall, which arrangement insures afull circulation of the waste gasesinto and through the radiatorbOX'PIlOT'lJO thelr d1scharge. a

The airsupplied .td-the radiator box en'- ters the inclosing box through an opening 18,1 7 preferably in the forward side of the m'c'losmg box, but it Will be understood that "the The dischargepi e the withdraw a portion of the waste gases from The discharge pipe enters.

location 'OfTbll air supply-opening may changed and the;form-orrshapefofthe'opeiP I ingnmodified to meet all the requirementsof ve 'cles 'ofdifferent descriptions In each case it is advisable to locate the opening at a point as free from dust or' odors as possible, I s:

and in some cases it may be advisable to provide a pipe 19, like that shown in Fig. 5,

which leads to a point from which a constant supply of fresh air may be obtained. In

order to regulate the amount of air supplied to the inclosing box, a damper 20 may be provided for closing the opening to any desired extent. The heated air passes through a register 21 in the floor of the car imme diately above the radiating box, and the register may be of any suitable style or character to regulate the amount of heat supplied to the car. In order to facilitate the heating and ventilating properties of the car, openings 22 are provided in or near the roof, which provides a constant circulation through the inclosed portion of the vehicle.

In use, when the car is inmotion, a constant' supply of fresh air will be carried through the opening in the forward side of the inclosing box, which fresh air will be heated by coming in contact with the heated surface of the radiating box, a portion of the air passing through the tubes or flues therein, and the air thus heated will be admitted in 25 any suitable quantity through the register'in the floor of the car, which is, of course, under the control 'of the occupant and may be opened or closed to any desired extent. The

.pulsations of the engine drive the heated 3 waste gases through the discharge pipe, and a portion of such gases will be diverted from the main pipe and carriedinto and through the radiating box beneath the floor of the vehicle and discharged through the exhaust.

pipe leading therefrom. The fiap valve in v the exhaust pipe is hung in such manner as' to be readily opened to permit the discharge of waste gas, thereby maintaining a constant circulation through and out of the box,

40 which is necessary in order to withdraw a sufficient quantity of. the heated ases to maintain the proper temperature 0 the radlator box. The flap valve acts as a check valve to prevent the discharged gases from being drawn back into the box by the partial vacuum formed therein by the condensation of the gases. The flap valve prevents this partlalvacuum frombeing relieved by .external air or dischar ed gases which might otherwise be sucked i rom the discharge outlet into the box. A current in the proper direction is thus maintained at all times. ThlS Withdrawal of a portion of the waste gases relieves the muffler to a' proportionate extent so that the muffler will not tend to burn out or be impaired so readily as in ordinary cases in which the entire volume of waste gas is discharged through the muflier. The provision of the radiating box, which afiords an additional outlet, further relieves the back pressure on the engine to a considerable degree.

It will be understood that the form, loca- I tion, shape and size of the mechanism will be dependent upon the shape and style of the automobile, motor boat or other vehicle or structure to which the device is applied, and that the device of the present invention can be used in all cases in which it is desirable to employ the surplus heat of a hydrocarbon engine for heating purposes.

What I regard as new and desire to secure by Letters Patent is: r

1. In combination with the structure to be heated, a hydrocarbon engine, an exhaust pipe leading therefrom, a muffler secured to the discharge end of the exhaust pipe and in open communication with the atmosphere, an inclosing box, secured to the structure to. be heated and provided with an intake opening for supplying fresh air, a register in communication with the inclosing box for con-v trolling the flow of heated air therefrom, a radiator box within the inclosing box, a branch pipe leading from the radiator box to the exhaust pipe intermediate the muffler and the engine, and a discharge pipe, leading from the radiator box and out of the inclosing box and discharging directly into the atmosphere, substantially as described.

2. In combination with the structure to be heated, a hydro-carbon engine, an exhaust pipe leading therefrom, a muflier secured to the discharge end of the exhaust pipe and in open communication with the atmosphere, an inclosing box, secured to the structure to be heated and provided with an intake opening for supplying fresh air, a radiator box within the inclosing box, a branch pipe leading from-the radiator box to the exhaust pipe intermediate the muffler and the engine, a valve controlled discharge pipe leading from the radiator box and out of the inclos: ing box and discharging directly into the atmosphere, and a register in the structure to be heated, for controlling the flow of heated air away from the inclosing box, substantially as described.

3. ,In' combination with the structure to be heated, a hydro-carbon engine, an exhaust pipe leading therefrom, a muffler secured to the discharge end of the exhaust pipe and in open communication With the atmosphere, an inclosing box under the floor of the structure to be heated and provided with an in- 115 take opening for. supplying fresh air, a radiator box within the inclosing box and elevated above thef'floor thereof, open ended tubes leading throu h the radiator box for increasing the circu ation thereof, a branch ipe 120 leading from near the top of the radiator ox to the exhaust pipe intermediate the muffler and the engine, a valve controlled discharge zpipe' leading from near the bottom of the radiator box and out of the inclosing box and discharging directly into the atmosphere, and a register in the floor of the structure for controlling the flow of heated air away from the inclosing box, substantially as described.

t. In an automobile, the combination of a closed bod an inclosing box located beneath the oor-of the closed body and provided with an intake opening, an engine at the forward end of the automobile, a muffler at the rear end of the automobile in open communication with the atmosphere, an exhaust pipe passing through the inclosing box and connecting the engine with the muffler,

a register in the floor of the automobile immediately above the inclosing box .for controlling the flow of heated air therefrom, a radiator box within the inclosing box and elevated above the, floor thereof, and provided with a plurality of open ended tubes or flues, a branch pipe connecting the radiator box with the exhaust pipe intermediate the engine and the mufller, and a discharge pipe leading from the radiator box through and out of the inclosing box and discharging directly into the atmosphere, substantially as described.

5. In an automobile, the combination of a body portion having a seat, an inclosing box.

located beneath the floor of the body portion and provided with an intake opening at its forward end, an engine at the forward end I of the automobile, a mufller at the rear end of the automobile in open communication with the atmosphere, an exhaust pipe passing through the inclosing box imme iately beneath the floor of the automobile, and connecting the engine with the muffler, a register in the floor of the automobile immediately above the inclosing box for controlling the flow of heated air therefrom, a radiator box within the inclosing box and immediately below the exhaust pipe and elevated above the floor of the box, and provided with a plurality of open-ended tubes or flues, a branch pipe connecting the radiator box "with the exhaust pipe intermediate the engine and the mufiler, and a discharge pipe leading from the radiator box through and out of the inclosing box behind the intake opening therein and dischargin directly into the atmosphere, whereby the back pressure on the engine is relieved and the products of combustion passing through the radiator box are.discharged behind the intake opening in the inclosing box, substantially as described.

NATHAN W. WILLIAMS.

Witnesses:

SAMUEL W. BANNING, EPHRAIM BANNING. 

